18974720815399648

Names of 18974720815399648

• Cardinal: 18974720815399648 can be written as Eighteen quadrillion, nine hundred seventy-four trillion, seven hundred twenty billion, eight hundred fifteen million, three hundred ninety-nine thousand, six hundred forty-eight.

Scientific notation

• Scientific notation: 1.8974720815399648 × 10¹⁶

Factors of 18974720815399648

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 529

Divisors of 18974720815399648

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 4 8 13 16 26 32 52 104 167 169 208 334 338 347 416 668 676 694 1336 1352 1388 2171 2197 2672 2704 2776 4342 4394 4511 5344 5408 5552 8684 8788 9022 11104 17368 17576 18044 27889 28223 34736 35152 36088 55778 56446 57949 58643 69472 70304 72176 111556 112892 115898 117286 144352 223112 225784 231796 234572 362557 366899 446224 451568 463592 469144 725114 733798 753337 762359 892448 903136 927184 938288 1450228 1467596 1506674 1524718 1854368 1876576 2900456 2935192 3013348 3049436 4657463 4713241 5800912 5870384 6026696 6098872 9314926 9426482 9677483 9793381 11601824 11740768 12053392 12197744 18629852 18852964 19354966 19586762 24106784 24395488 37259704 37705928 38709932 39173524 60547019 61272133 74519408 75411856 77419864 78347048 121094038 122544266 125807279 127313953 149038816 150823712 154839728 156694096 242188076 245088532 251614558 254627906 309679456 313388192 484376152 490177064 503229116 509255812 777796321 787111247 968752304 980354128 1006458232 1018511624 1555592642 1574222494 1616139661 1635494627 1937504608 1960708256 2012916464 2037023248 3111185284 3148444988 3232279322 3270989254 4025832928 4074046496 6222370568 6296889976 6464558644 6541978508 10111352173 10232446211 12444741136 12593779952 12929117288 13083957016 20222704346 20464892422 21009815593 21261430151 24889482272 25187559904 25858234576 26167914032 40445408692 40929784844 42019631186 42522860302 51716469152 52335828064 80890817384 81859569688 84039262372 85045720604 131447578249 161781634768 163719139376 168078524744 170091441208 262895156498 269895323387 273127602709 323563269536 327438278752 336157049488 340182882416 525790312996 539790646774 546255205418 672314098976 680365764832 1051580625992 1079581293548 1092510410836 1708818517237 2103161251984 2159162587096 2185020821672 3417637034474 3508639204031 3550658835217 4206322503968 4318325174192 4370041643344 6835274068948 7017278408062 7101317670434 8636650348384 8740083286688 13670548137896 14034556816124 14202635340868 27341096275792 28069113632248 28405270681736 45612309652403 54682192551584 56138227264496 56810541363472 91224619304806 112276454528992 113621082726944 182449238609612 364898477219224 592960025481239 729796954438448 1185920050962478 1459593908876896 2371840101924956 4743680203849912 9487360407699824 18974720815399648
• Sum of all divisors σ(n): 40829213879359920
• Sum of proper divisors (its aliquot sum) s(n): 21854493063960272
• 18974720815399648 is an abundant number, because the sum of its proper divisors (21854493063960272) is greater than itself. Its abundance is 2879772248560624

Bases of 18974720815399648

• Binary: 1000011011010010110100001110101111010100000001011100000₂
• Hexadecimal: 0x43696875EA02E0
• Base-36: 56TZ6EKPRDS

Squares and roots of 18974720815399648

• 18974720815399648 squared (18974720815399648²) is 360040030022360682673705958523904
• 18974720815399648 cubed (18974720815399648³) is 6831659052042401438884754706502229142773921185792
• The square root of 18974720815399648 is 137748759.7599326773
• The cube root of 18974720815399648 is 266721.7702126765

Scales and comparisons

• 18,974,720,815,399,648 seconds is equal to 603,337,429 years, 13 weeks, 5 days, 7 hours, 27 minutes, 28 seconds.
• To count from 1 to 18,974,720,815,399,648 would take you about one billion, eight hundred ten million, twelve thousand, two hundred eighty-seven years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 18974720815399648 cubic inches would be around 22226.8 feet tall.

Recreational maths with 18974720815399648

• 18974720815399648 backwards is 84699351802747981
• The number of decimal digits it has is: 17
• The sum of 18974720815399648's digits is 91
• More coming soon!